John 17:19-21

And for their sakes I sanctify myself, that they also might be sanctified through the truth. {sanctified...: or, truly sanctified} Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, {art} in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.